The hex color #3a11d2 is a dark color. The web-safe version is Hex
#3300CC. A complementary color is
#C5EE2D. The grayscale version is
#5F5F5F. A 20% lighter version of the original color is
#6D44FF, and Hex
#07009F is the 20% darker color. If the color is saturated by 10%, you get
#3609DE. If the color is desaturated by 10%, the color
#3E19C7 is obtained.